126056531 has 2 divisors, whose sum is σ = 126056532. Its totient is φ = 126056530.

The previous prime is 126056423. The next prime is 126056543. The reversal of 126056531 is 135650621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126056531 - 2¹⁰ = 126055507 is a prime.

It is a super-2 number, since 2×126056531² = 31780498015507922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126056494 and 126056503.

It is not a weakly prime, because it can be changed into another prime (126056551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63028265 + 63028266.

It is an arithmetic number, because the mean of its divisors is an integer number (63028266).

Almost surely, 2^126056531 is an apocalyptic number.

126056531 is a deficient number, since it is larger than the sum of its proper divisors (1).

126056531 is an equidigital number, since it uses as much as digits as its factorization.

126056531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 126056531 is about 11227.4899688221. The cubic root of 126056531 is about 501.4047576160.

The spelling of 126056531 in words is "one hundred twenty-six million, fifty-six thousand, five hundred thirty-one".